Break the chocolate into pieces and melt together with the butter over a hot water bath.
Then stir in sugar, almonds, baking powder, vanilla sugar, salt and finally the eggs into this butter chocolate. If the dough is very runny, stir in 2-3 tablespoons of flour.
Place the chocolate dough in a springform pan (26 cm Ø) lined with baking paper and bake in a preheated oven at 160 ° C top / bottom heat (fan: 140 ° C, gas: level 2) for about 40 minutes.
After cooling, the dough should still be a bit sticky inside.
To garnish, cut 1.5 cm wide strips of paper, place them on the cake and dust everything with powdered sugar. Carefully remove the paper strip.
Tip: I brushed the outside of the cake with hot apricot jam (microwave) and, after it had dried, covered it with chocolate couverture.